Manufacture of golf-balls.



No. 734,339. PATENTED JULY 21, 1903. G. T. KINGZ ETT.

MANUFACTURE OF GOLF BALLS.

APPLIOATION FILED I EB. 4, 1903.

N0 MODEL.

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"ml: norms PETERS co. FHQTOLITHOU wnsmns'rou, n cy Patented July 21, 1903.

PATENT OFFICE.

CHARLES THOMAS'KINGZE'IT, OFCHISLEIIURST, ENGLAND.

MANUFACTURE OF GOLF-BALLS.

SPECIFICATION forming part of Letters Batent No. 734,339, dated July 21, 1903.

Original application filed September 2, 1902, Serial No. 121,811. Divided and this application filed February 4, 1903. Serial 'N0.141,875. (N0 model.)

To all whom, it nut/y concern:

Be it known that I, CHARLES THOMAS KING- ZETT, chemical manufacturer, asubject of the King of Great Britain, residing at Elmstead Knoll, Chislehurst, in the county of Kent,

England, have invented a certain new and useful Improvement in the Manufacture of Golf-Balls, of which the following is a specification.

According to my invention I construct golfballs or portions of golf-balls of several alternating layers of gutta-percha and india-rubher or of other similar slightly and highly elastic substances. By this means the clasticity derived from the partial use 'of rubber is well distributed throughout their entirety and is not confined to one particular part.

In balls with a core of india-rubber thread or sheet the'core really constitutes a hard although elastic core, and the coating of guttapercha being only about one eighth inch thick every impact from the edge of an iron club is felt severely, and in the end the shell is out through to the core or cracked and then the ball is useless. Not so in myballs. The impact is communicated in a wave-like manner from layer to layer. In other words, they are better cushioned and more continuous in nature, so that after the blow the balls more easily recover their original shape. It follows that my balls wear better and are easily remade by merely heating and remolding or, at worst, by adding a thin coating of guttapercha. V

My balls putt well, for by reason of the clasticity being better diifused they do not jump about so much when coming in contact with irregularities on the ground as do balls whose elasticity is concentrated, so to speak, in the core of elastic thread or elastic sheet, respectively.

In the accompanying drawings, Figure 1 represents a sheet of gutta-percha, say about one-sixteenth inch thick Fig. 2, a similar shorter and narrower sheet of india-rubber. Fig. 3 is a longitudinal section of the same after they have been placed one overthe other 'andthen rolled together, so as to form a cylindrical roll. Fig. 4 shows a section of such cylindrical roll after its ends have been roughly closed in by hand and the whole brought to an approximately spherical form. Fig. 5 shows an'exterior view of the roll after it hasbeen compressed in a mold to bring it toa truly spherical form. Fig. 6 shows a section ofa smaller ball formed in this way i together when more or less heatedfto form a cylindrical rollwith a gutta-percha exterior surface and with the side edges of the guttapercha'sheet protruding outward beyond the side edges of the rubber sheet, as illustrated in Fig. 3. The ends of the cylindricalrol]. are then, when the roll is heated, closed in by hand, so as to bring it approximately to a spherical form, which may then be further compressed by a suitable mold; or, as illustrated in Fig. 6, a smaller ball 01 may be formed in this way and inclosed in an outer casing of guttapercha c, being'two hemispherical cups of gutta-percha, first molded and placed over the smaller ball and the whole then compressed together, or, again, the folds maybe manifold, although alternating-that is to say, several layers or folds of first the one substance and then the other, and so on, or, as illustrated in Figs. 7 to 9, a spherical core of alternating layers (not rolled) of india-rnbber and gutta-percha may be inclosed within an outer casing of gutta-percha.-

I do not herein claim the ball as an article of manufacture, as such claims are made in my application for Patent No. 121,811, filed September 2, 1902, of which this case is a division.

What I claim is- 1. The hereinbefore-described process of forming balls, consisting in placing together one over the other a plurality of alternate layers of sheet india-rubber and sheet guttapercha, and squeezing the assemblage of layers when heated into a spherical form.

2. The hereinbefore-described process of forming balls, consisting in placing together one over the other a plurality of alternate layers of sheet india-ruhber and sheet guttapercha, the layers of gutta-percha being of greater width than the layers of india-rubher, and squeezing the assemblage of layers when heated into a spherical form.

3. The hereinbefore-described process of forming balls, consisting in placing a strip of sheet india-rubber onto a strip of sheet gottapercha, winding up the strips into a roll, and then squeezing the roll when heated into a spherical form.

forming balls, consisting in placing together one over the other a plurality of alternate layers of sheet india-ruhber and sheet gottapercha, and squeezing the assemblage of layers when heated into a spherical form, then surrounding the sphere so formed with guttapercha, and squeezing the whole together when heated Within a mold.

6. The hereinbefore-deseribed process of forming balls, consisting in placing together one over the other a plurality of alternate layers of sheet india-rubber and sheet guttapercha, the layers of gutta-percha being of greater width than the layersof india-rubher, and squeezing the assemblage of layers when heated into a spherical form, then surrounding the sphere so formed with guttapercha, and squeezing the whole together when heated within a mold.

7, The hereinbefore-described process of forming balls, consisting in placing a strip of sheet india-rubber onto a strip of sheet guttapercha, winding up the strips into a roll, and then squeezing the roll when heated into a spherical form, then surrounding the sphere so formed with gutta-percha, and squeezing the whole together when heated within a mold.

S. The hereinbefore-described process of forming balls, consisting in placing a strip of sheet india-rubber onto a strip of sheet guttapercha of greater width and length, winding up the strips into a roll in such way that the outermost layer of the roll is of gutta-percha, and then squeezing the roll when heated into aspherical form, then surrounding the sphere so formed with gutta-percha, and squeezing the whole together when heated within a mold.

CHARLES THOMAS KINGZETT.

Witnesses:

WILLIAM HOLMES, CHARLES BEOKENSALL. 

